Alright, let's work through 7866 times 6863 step by step
7866 × 6863 = 6863 × (7866)
+ 6863 × 6 giving us 41178
+ 6863 × 60 that is equal 411780
+ 6863 × 800 that equals 5490400
+ 6863 × 7000 which equals 48041000

= 53984358
